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2100 MHz 23dBm Cell Phone Signal Enhancer Supporting EGSM 900 / DCS 1800 / WCDMA

Categories Cell Phone Signal Boosters
Brand Name: GREETWIN
Model Number: GW-23DR-EDW
Certification: SGS, ISO9001,CE,ROHS
Place of Origin: China
MOQ: 1pcs
Price: Contact Us
Payment Terms: T/T, L/C, Western Union, MoneyGram
Supply Ability: 5000pcs per Month
Delivery Time: 3 Working Days After Received Payment
Packaging Details: Carton with PE Foam
Product Name: 23dBm Tri Band Digital Repeater
Frequency: EGSM 900 / 1800 / 2100 MHz
Max Gain: 75dB
Max Output Power: 23dBm
ALC: ≥25dB
In-band ripple: ≤5dB
Intermodulation: ≤-40dBm
Noise factor: standard ≤ 8dB, Max. ≤ 9dB
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2100 MHz 23dBm Cell Phone Signal Enhancer Supporting EGSM 900 / DCS 1800 / WCDMA

23dBm EGSM 900 / 1800 / 2100 Cell Phone Signal Boosters with Digital Technology

Model. GW-23DR-EDW


Greetwin GW-23DR-EDW model is a tri band digital repeater supporting EGSM 900 / DCS 1800 / WCDMA 2100 MHz with 23dBm per band and has software-defined filtering for up to 4 sub-bands per band. Individual gain and ALC settings allow for homogeneous coverage and oscillation prevention.

Each sub-band can work independently without any influence with each other. It’s designed to support one mobile system and help mobile operators to amplify their own mobile signals. It supports to adjust the sub-band and the channels by software to adapt to the operators’ requirement s without any change on the hardware. The repeater is also equipped with OMT / OMC remote control and monitoring system allowing to configure and control the device operation remotely via PC or wireless modem (optional function). The built-in backup battery will ensure the operation of the device even with a sudden power failure (optional function).


1. Stably working,low power consumption,fit in with industry standard

2. Digital technology, many SAW filters ensures enough output level and out-band suppression.

3. High isolation,strong compatibility,convection cooling,light weight, convenient installation.

4. Local RJ45 monitoring and remote monitoring conform to communication monitoring protocol standard, which is convenient for engineering commissioning and maintenance.

Equipment Compoments:

Digital repeaters main compoments as follows:

Main MasterNXWXSB2018212301111Piece
Network Line1M*R451Piece
Ground Wire1.5mm²1.5MeterEnded with metal sheet
Expansion screwM4*100mm4Piece
Mounting bracket/2Piece
Mounting bracket screwM6*14mm4Piece
Whip Antenna800~2700MHz1PieceUsed for Modem

Working Principle:

The principle of Digital Band Selective Repeater is the downlink signal received by the Donor Antenna of the base station shall be sent to a band selective filter via duplexer to be filtered and to be amplified by the downlink band selective amplifier to a proper level. The Coverage Antenna via a duplexer shall emit the downlink signal. Similarly, the signal received by the Re-transmission Antenna shall have its level adjusted to a regulated level by a uplink band selective amplifier after it is filtered. The Donor Antenna will emit it after it is filtered and sent to the duplexer.

Panel interface description:

1BaffleOpen it, SIM card socket and RJ45 interface inside
2MODEMSMA-female jack, connect to a whip antenna with SMA-male jack
3RUNPower indicator
4ANTIndoor service antenna, SMA-female jack
5BTSOutdoor donor antenna, SMA-female jack
6GNDEquipment grounding
7ACPower Supply: AC 220V


Frequency rangeEGSM900880-915MHz925-960MHz
3G 21001920-1980MHz2110-2170MHz
BandwidthEGSM9004 sub-bands, each 0.2 ~ 10MHz, adjustable and adjustable within the 900 MHz frequency range
GSM18003 sub-bands, each 0.2 ~ 20MHz, configurable and adjustable within the frequency range of 1800 MHz in 0.2 MHz increments
3G 21004 subranges, each 0.2 ~ 15 MHz, adjustable and adjustable within the frequency range of 2000 MHz in 0.2 MHz steps
Max. gain70±2dB75±2dB
Max output power20±2dBm23±2dBm
Manual gain control (step down)≥31dB/1dB step
VSWRentrance≤ 2.3
exit≤ 2.3
Noise factorstandard ≤ 8dB, Max. ≤ 9dB
Group delay≤ 7us
Frequency ErrorEGSM900/GSM1800≤ 0.05 ppm 3GPP TS 51.026 (V 13.0.0 )
Frequency stability3G 2100± 0,01 ppm 3GPP TS 25.143 ( V 13.0.0 )
Function Elements
Moving stripEGSM900The frequency subbands can be mobile within the range of 35MHz
GSM1800The frequency subbands can be mobile within the range of 75MHz
3G 2100The frequency subbands can be mobile within the range of 60MHz
Adjustable bandwidthEGSM900The frequency subbands can be tuned from 0.2 MHz to the maximum 10 MHz
GSM1800The frequency subbands can be tuned from 0.2 MHz to a maximum of 20 MHz
3G 2100The frequency subbands can be tuned from 0.2 MHz to a maximum of 15 MHz
LED system indicatorsALC is not active---Green
ALC active <45dB---Flashing green 1 time / 3 seconds
ALC active ≥ 45dB---Flashing green 1 time / 1 second
ALC active (51dB) ends---Blinks red 1 time / 1 second
LED control indicators

Start indicator

The monitoring module is working correctlyFlashing green 1 time / 1 second
The monitoring module does not work correctlyOff

Indicator modem

SIM card not insertedOff
SIM card inserted, but no signalRed
SMS communication modeFlashing green 1 time / 1 second
GPRS communication modeBlinking green 2 times / 1 second
GPRS communication errorBlinks red 1 time / 1 second

Alarm indicator

No alarm itemsGreen
There are elements of anxietyRed
DC FailureOff
Mechanical parameters
Dimensions460mm(exclude connector 20mm)*200mm*80mm
The weight9.1KG (with packing box, 10.72KG)
Type of instalationWall Mount
GroundingExternal ground (housing)
Electrical parameters
Source of powerIncoming AC 100 ~ 240V, 50 ~ 60Hz, outgoing DC12V / 7A
Power Consumption55W
Input and output impedance50 Ohm
Environmental parameter
Working temperature-25℃ ~ +55℃
Environmental conditionsIP40
Local monitoringPC via Ethernet port
Remote monitoringvia SMS or GPRS (additional function)
Controlled parametersGain, Frequency, Repeater On / Off, Alarm
Monitoring parametersGain, frequency, repeater on / off, alarm message
AlarmRepeater failure, power failure, ALC alarm (signal gain level), etc.

1. After installing booster signal not be very good, indoor signal coverage very small ?
> Adjust outdoor antenna's location and direction
> Change another high gain outdoor antenna
> Check whether cables are connected well
> Change more powerful repeater

2. Cell phone signal full bar, but communication quality bad ?
> Much closer distance between indoor and outdoor antenna, separate them with a longer distance.

3. After installing booster not only signal be good, but also more bad ?
> Much closer distance between indoor and outdoor antenna, separate them with a longer distance.

4. Working good for long time, suddenly signal bad ?
> Check whether outdoor cable connectors are flooded
> Check whether power light is working normally
> If cables are not flooded and power light is working normally, the booster should has problems and need to be sent back to factory for repair.



The booster is fixed onto the wall through expansion bolts.
A. Drill holes on the targeted place and install expansion bolts.
B. Align the holes with the expansion bolts, place flat washers, spring washers, and nuts in turn, and tighten the nuts to fasten the installing support.
C. Place the booster on and fasten it.
D. Connect cables and power cables to the booster respectively.
E. After installing the booster as described above, power on the booster to check the operation status.

A. BTS Port: donor antenna cable is connected with Outdoor Port;
B. MS Port: service whip antenna is connected with Indoor Port;
C. DC IN: connected with Power adaptor.

Our Workshop:

Our Company:

Greetwin Tech is a strong and reliable factory, focusing on the R&D and Manufacturing of Digital ICS Repeater, RF Repeater, Indoor Signal Distribution System, Trunk Amplifier, Band Selective Repeater for more than 10 years.

Quality 2100 MHz 23dBm Cell Phone Signal Enhancer Supporting EGSM 900 / DCS 1800 / WCDMA for sale
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